Off to a 6-0 start for just the fifth time in school history and with a showdown with defending Mountain West champion Boise State on the horizon, No. 11 BYU is more than a four-touchdown favorite to make it 7-0 Saturday night when it hosts Western Kentucky in Provo, Utah.Behind the passing of junior quarterback Zach Wilson, the Cougars have scored 40 or more points in five of their first six games, including last week when they scored 49 unanswered points in a 52-14 drubbing of Texas State. They rolled up 579 total yards in the process.Among teams that have played multiple games, BYU ranks fifth nationally in scoring offense (45.0 points per game), total offense (547.3) and passing offense (353.3) with the 6-foot-3 Wilson leading the way. He has completed 126 of 161 passes for 1,928 yards, 16 touchdowns and one interception. He also has rushed for 115 yards and six touchdowns.Wilson finished 19 of 25 for 287 yards and four touchdowns in the win over Texas State and also added 15 rushing yards and a 16-yard pass reception. BYU also set a school-record with 14 players catching at least one pass.But Cougars head coach Kalani Sitake says there are still plenty of things for his team to work on, especially with a Nov. 6 matchup at regional rival and 25th-ranked Boise State coming up. On paper, it appears to be BYU’s biggest obstacle to an undefeated regular season.The Broncos (1-0), who walloped Utah State, 42-13, in their season-opener and travel to Air Force on Saturday afternoon, no doubt have that contest circled on the schedule after dropping a 28-25 decision to the Cougars last season in Provo.”I love the way our guys responded all night, and I look forward to fixing some of the things we can improve on from this week and play better next week against Western Kentucky,” Sitake said. “That is my mindset, is just thinking about things we can get better at.”BYU, which opened the season with an eye-popping 55-3 rout of Navy, and owns wins over Louisiana Tech (45-14) and Houston (43-26), also ranks No. 8 nationally in scoring defense (14.0) and No. 7 in total defense (284.5) among teams that have played multiple games.